Welcome, sharp! But too bad you didn't come on here 250 miles ago.
Ah, you probably wouldn't have listened to us anyway.
I'm with kiteboy, but -- really, it all depends exactly what you mean by "aggressively." And, although I'm not sure about this, I think it's harder to do harm to an automatic than a manual -- unless you push it to an extreme, I think the car prevents most really bad stuff.
I think you're probably not too bad off. But really, kiteboy nailed it. That's the long and the short of it.